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Back Issue
March 2007, Vol. 103, No. 3
In This Issue
REACTIONS AND SEPARATIONS
Scaling Fixed-Bed Catalyzed Processes
The new parameter introduced here will yield more meaningful results when a fixed-bed reactor is scaled up for process development or scaled down for plant support.
Jonathan H. Worstell
MANAGEMENT
Modular Mini-Plants: A New Paradigm
Modular design principles are well known, but have found only niche applications in the Chemical industry. This article outlines an innovative methodology, whereby plant and process design may be conducted in parallel using components with pre-determined specifications and capacities, and operational details emerge uniformly and predictably.
Shashank Shah
FLUIDS AND SOLIDS HANDLING
The G-Value for Agitator Design: Time to Retire It?
This commonly used number does not correctly address the influence of viscosity, and has no relationship to performance parameters such as fluid velocity and blend time. This article recommends actual measures of agitator performance that should be used instead.
Gregory T. Benz
DESIGN
Streamlining the Validation Process
Today, validation is no longer an "afterthought" for the design and construction of a new or renovated process or facility. It is, in fact, recognized as an integral part of the total project. Fully integrated services are now available to ensure a reduced validation cost and timely completion strategy.
Tim Flanigan and Robert Mackey